| 气中微细电火花沉积加工的单脉冲放电过程热力学仿真(英文) |
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| 引用本文： | 王玉魁,解宝成,王振龙,彭子龙.气中微细电火花沉积加工的单脉冲放电过程热力学仿真(英文)[J].中国有色金属学会会刊,2011(Z2). |
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| 作者姓名： | 王玉魁 解宝成 王振龙 彭子龙 |
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| 作者单位： | 哈尔滨工业大学机电工程学院;哈尔滨工业大学微系统与微结构制造教育部重点实验室; |
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| 基金项目： | Projects(51105111,50675049)supported by the National Natural Science Foundation of China; Project(HIT.KLOF.2010010)supported by the Fundamental Research Funds for the Central Universities,China |
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| 摘 要： | 建立气中微细电火花沉积加工过程电极材料的热物理模型。利用有限元分析软件ANSYS对单脉冲条件下的工具电极和工件的瞬态温度场进行数值模拟,分析热源形式、初始边界条件和放电能量分配对工具电极和工件材料蚀除形式的影响,并预测适合微细电火花沉积加工的工艺参数。采用仿真预测得到的工艺参数,在高速钢工具表面稳定沉积出直径约200μm、高度约1.2mm的微圆柱结构。对沉积材料微观组织结构的测试分析表明,沉积材料与基体结合紧密。工艺实验和测试分析证明了所建立的微细电火花沉积加工过程的单脉冲放电热物理模型和有限元求解过程的正确性。
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| 关 键 词： | 微细电火花沉积 热物理模型 有限元 单脉冲放电 微圆柱沉积 |
Micro EDM deposition in air by single discharge thermo simulation |
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| WANG Yu-kui ,XIE Bao-cheng ,WANG Zhen-long ,PENG Zi-long . School of Mechatronics Engineering,Harbin Institute of Technology,Harbin ,China,. Key Laboratory of Micro-systems , Micro-structures Manufacturing of Ministry of Education.Micro EDM deposition in air by single discharge thermo simulation[J].Transactions of Nonferrous Metals Society of China,2011(Z2). |
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| Authors: | WANG Yu-kui XIE Bao-cheng WANG Zhen-long PENG Zi-long School of Mechatronics Engineering Harbin Institute of Technology Harbin China Key Laboratory of Micro-systems Micro-structures Manufacturing of Ministry of Education |
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| Affiliation: | WANG Yu-kui 1,2,XIE Bao-cheng 1,WANG Zhen-long 1,PENG Zi-long 1 1. School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,China,2. Key Laboratory of Micro-systems and Micro-structures Manufacturing of Ministry of Education |
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| Abstract: | A thermo-physical model for micro electric discharge machining deposition process using finite element method (FEM) was introduced. The numerical analysis of the single spark operation of the process was carried out in FEM software ANSYS, considering the Gaussian distribution of heat flux, initial and boundary conditions, and energy distribution of different kinds of tool electrode and workpiece in material. The suitable discharge conditions for the deposition process were predicted from the transient tempe... |
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| Keywords: | micro EDM deposition thermo-physical model FEM single discharge micro deposited cylinder |
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